Hi there I’m exploring natural convection and still new in it, I solved a simple problem and it works as attached My issue is why heat flux from natural convection are huge as can be seen in dervided 664.6 w/m2 ? its laminar floiw, How COMSOL estimate that? why so high I calculated average surface value , i attached my model (its 10 mb so I ahd to zip it) , its v 5.5 thanks for your help Abraham
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